January, 2011. Floodwaters entering Lake Bolac through the Fiery Creek inlet. This shows the accumulation of water behind the barrier dunes and the strength of the flood entering the lake through the narrow debouchment. The aboriginal midden can clearly be seen in the front left to centre of the photograph. Photograph courtesy James Davidson.lake bolac, fiery creek, 2011 flood, midden

Peter Cole-Adams was Associate Editor of The Age. No other biographical details are available, but his writings are recorded and can be accessed through Google. The C&N article was about a speech he gave entitled "Publish and be damned" at Mt Eliza UC's annual community lecture (which is produced in full).B & W head and shoulders photograph of Peter Cole-Adams. "Peter Cole-Adams"peter cole-adams, the age newspaper

Lanercost Priory was founded around 1169 by Robert de Vaux, and was home to an order of Augustinian canons until 1538 when is was dissolved by Henry VIII. In 1542 the priory and lands were granted to Thomas Dacre, an illegitimate son of Thomas, Lord Dacre. Mason's marks can be found throughout the undercroft. Plan on white paper with black and red ink printing and a drawingEnglish Heritage Lanercost Priorymason's marks, marks, stone marks, stonemasons, lanercost, priory, plan, 1169

The photograph shows Ballarat No. 40 running into the depot on 19/9/1971 following its last trip at the time of the closure of the SEC-operated Ballarat tram system. The word "End" can be seen on one of the doors - when they closed it formed part of the expression "The End". Not known who took the photograph.Yields information about the last tram into the depot on 19/9/1971.Black and white photograph on plain papertramcars, trams, last tram, closure, depot, tram 40

Hose nozzle size can affect the stream of water. A smaller hole puts out a longer stream but with less volume. A longer water stream is useful when trying to extinguish fire or sparks high in the tree tops. They were often used with high pressure pumps like the Pacific Marine.Aluminum fire hose nozzle(s) with Y joint and interchangeable brass attachments For 1.5 inch hose with screw attachments rather than modern twist-camm locks. The main nozzle is aluminum alloy and the interchangeable nozzles are made of brass.bushfire, fire pump, forests commission victoria (fcv)

Common Opal is a mineraloid that is non crystallising and is classed as an amorphous silicate, the chemical composition for Opal is SiO2 nH2O. Opals can develop in weathered sedimentary rock typical in arid regions where limited water enters small gaps in the rock, and the silicate is hydrated. Common opals, unlike precious opals, do not exhibit ‘play of colour’ in which the colour appears to change depending on the angle of view. While precious opals are highly valuable and cut as gemstones for jewellery, common opals can be cut into inexpensive gemstones and are also mined for various uses including as ingredients in ceramics, insulation, fillers, and abrasives. The source of this common opal specimen is unknown, but common opals are found around the world, notable deposits are found in Queensland, South Australia, New South Wales, Peru, Kenya, Nevada, Oregon, and Mexico. This common opal specimen is of historic and scientific significance due to its donation in 1868 as part of the Geological Survey of Victoria and as a typical example of uncut common opal. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A palm-sized amorphous (non-crystallising) hydrated silicate mineraloid specimen in shades of brown, orange, and white.Existing label: Common Opal / Locality unknowngeological specimen, geology, geology collection, burke museum, beechworth, common opal, opal, mineraloid, amorphous silicates, hydrated silicate

A spokeshave was made with a wooden body and metal cutting blade. With industrialization metal bodies displaced wood in mass-produced tools. Spokeshaves can be made from flat-bottom, concave, or convex soles, depending on the type of job to be performed. They can include one or more sharpened notches along which the wooden shaft is pulled in order to shave it down to the proper diameter. Historically, spokeshave blades were made of metal, and the body and handles were wood. Unlike a drawknife, but like a plane, spokeshaves typically have a sole plate that fixes the angle of the blade relative to the surface being worked. By the twentieth-century metal handles and detachable blades had become the most common. A convex, wooden, variant of the spokeshave is called a travisher; at one time mostly used in chairmaking.A tool of the cooper and other woodworking tradesmen that has been in use since the making of barrels and wooden buckets for hundreds of years without much change to the design or how the tool is used.Spokeshave, with two wooden handles on either side. Noneflagstaff hill, warrnambool, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, coopers tools, spokeshave, barrel making, wood plane

A spokeshave was made with a wooden body and metal cutting blade. With industrialization metal bodies displaced wood in mass-produced tools. Spokeshaves can be made from flat-bottom, concave, or convex soles, depending on the type of job to be performed. They can include one or more sharpened notches along which the wooden shaft is pulled in order to shave it down to the proper diameter. Historically, spokeshave blades were made of metal, and the body and handles were wood. Unlike a draw knife, but like a plane, spokeshaves typically have a sole plate that fixes the angle of the blade relative to the surface being worked. By the twentieth-century metal handles and detachable blades had become the most common. A convex, wooden, variant of the spokeshave is called a travisher, at one time mostly used in chair making.A tool of the joiner and other woodworking tradesmen that has been in use since the making of furniture for hundreds of years without much change to the design or how the tool is used to smooth and shape timber.Spokeshave, Marked AH, (believed to be owner)flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village

This testing voltmeter recorder was last certified by SEC Vic laboratories on the 17/4/77. It was used extensively as mobile recorder placed for periods of one month at locations experiencing unacceptable fluctuations of power. These locations would cover the North East regions of Victoria. They cover voltage drops at domestic and business properties especially those that were experiencing regular fluctuations(daily) at approximately the same time of the day. As the electrical network is required to operate within a set level of voltage, fluctuations outside of this has to be investigated and necessary remedial action taken. This is especially so for rural properties where power "drainage" can occur through animal/bird and tree interference. It can also be the result of defective wiring and overloading at peek operational times (milking machines).This mobile voltage recorder is very significant to the Kiewa Valley because it highlights the difficulties that can occur in maintaining a power supply that experiences fluctuating power demands by the rural industries that it supplies. The requirement of a mobile testing apparatus to cover the various sections in the Kiewa Valley and other rural areas in the northeast region is one of necessity as electricity once connected to a rural property is a labour saving supply as generators on rural properties require a higher degree of maintenance an ultimately at a higher cost. The testing of the SEC Vic supplied electricity to rural properties,those who had previously run on generators, had to be quick and unassuming with certainty of correct supply levels.The mechanism of this voltage recorder has been installed(by the manufacturer) into its own protective wooden box. This box has a front (swing open) lockable section which permits direct access to the installed measuring equipment (for servicing and data collection). The top section of the box has two screw on terminals for access to the machine being tested. This tester has its own inbuilt ink supply facilities and a mechanical clockwork device that unwinds a roll of paper onto a second roll at a rate of 10 mm per hour. The recording chart is marked with time slots against voltage. There is a recording arm which has an ink pen at the end. Both arm and pen carry the ink supply from the ink reservoir, located on the left side of the cabinet door in specially constructed bottle holder( three small bottle capacity). To record a suspect power problem to a home or business establishment the voltmeter is connected to a power supply outlet being tested and wind the recording clockwork mechanism (gives a four week running time). Before leaving the recorder in situ the electrician checks to see if the chart is recording the correct voltage and that the clock mechanism is advancing correctly.On the front of the access "door" at the top a metal label "RECORDING AMMETER" below this "MURDAY SYSTEM" below this "ALTERNATING CURRENT" and below this the manufacturer's registered number "No. 139156" Below this is a metal tag with State Electricity Commission of Victoria Electrical Engineer's Section equipment number "338" Below these tags and above the viewing window is the manufacturer's dtails "EVERSHED & VIGNOLES Led LONDON"sec vic kiewa hydro scheme, alternate energy supplies, alpine feasibility studies temperature, rainfall, power outages

Router planes are not the same as modern power routers. The simplest answer is that a router plane is a chisel held at adjustable vertical depths in a block of wood or metal. An antique-style router plane is mainly used for levelling out the bottoms of dado joints, mortises, and when installing hinges, inlays, and tenon cheeks, and similar other uses. There are three main categories or styles of router planes the earliest type of these is affectionately referred to as an "old woman's tooth", or "Grandma's Tooth". These planes can be as simple as a block of wood with the iron wedged in, and some have wedges with brass thumbscrews. Most of these router planes were shop-made tools their bottom flat so they can ride along the top of the wood, and the iron is adjusted to the desired depth by moving it up and down with your fingers.An interesting vintage joinery tool used before mechanical routers with early examples often sought after by collectors today. The subject item was probably made in a joinery workshop for a specific need in regards to producing a specific type of profile. As a result, even though the item appears to be quite old it has no makers mark, age and provenance are unknown.Router Plane Old Woman's Tooth pattern wooden stopper for holding the blade in place. Noneflagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village

A spokeshave was made with a wooden body and metal cutting blade. With industrialization metal bodies displaced wood in mass-produced tools. Spokeshaves can be made from flat-bottom, concave, or convex soles, depending on the type of job to be performed. They can include one or more sharpened notches along which the wooden shaft is pulled in order to shave it down to the proper diameter. Historically, spokeshave blades were made of metal, and the body and handles were wood. Unlike a drawknife, but like a plane, spokeshaves typically have a sole plate that fixes the angle of the blade relative to the surface being worked. By the twentieth-century metal handles and detachable blades had become the most common. A convex, wooden, variant of the spokeshave is called a travisher; at one time mostly used in chairmaking.A tool of the cooper and other woodworking tradesmen that has been in use since the making of barrels and wooden buckets for hundreds of years without much change to the design or how the tool is used.Spokeshave, with two wooden handles on either side. Noneflagstaff hill, warrnambool, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, coopers tools, spokeshave, barrel making, wood plane, wagon making, joiners tools, carpenter tools

This specimen was recovered from Silverton Mine in Broken Hill, New South Wales. Otherwise known as the 'Day Dream Mine', the Silverton Mine was first established in 1883, when silver and lead deposits where discovered. Within a few short years, the population of Broken Hill reached 3000 people. As of today the Silverton Mine is still open, and has produced over 200 million tonnes of ore, which has generated over $100 billion. The Silverton Mine was also famous for a number of specimens such as silver, iron and zinc.Copper is considered to be a rare ore in that finding it in its pure form is rare. Nowadays when mining for Copper it is often found in mixed in with other minerals or it is recycled from use. Moreover, Copper is found in a range of everyday uses such as coins, cookware, pipes, heating conductors and anything that generate electricity. The fact that Copper is heat a heat conductor, electricity conductor and it does not corrode easily, makes this ore a versatile and useful. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A solid hand-sized cube-shaped sulfide and oxide with shades of green, grey and brown throughout. Copper is typically found as nuggets in the ground. It can be found in a range of forms such as its native state; mixed with other ores, such as zinc and iron; as porphyry copper deposits; and as major deposits. Porphyry deposits are when the mineral is scattered evenly throughout the rock. Major deposits are when the mineral is scattered amongst other minerals.burke museum, beechworth, indigo shire, beechworth musum, geological, geological specimen, mineraology, copper, copper ore, copper ore speciment, broken hill, new south wales

E. R. Watts and Son, makers of theodolites and other surveying instruments, of 123 Camberwell Road, London. The company was established in 1856 by Edwin Watts at twenty-three he had saved £100 from his earnings to start the business with his staff consisting of one boy and later Alexander Clarkson as an apprentice with the workshop a small room over a Bemondsey stable. Watts' first order was from Negretti and Zambra for a mining dial Alexander Clarkson In the early days the firm worked mainly on marine compasses. Edwin Watts would go down to the Docks to adjust the compasses once they had been installed on the ships. In May 1873 the business moved to larger premises a house with a garden. The workshop was also the home of Mr and Mrs Watts and their five sons and three daughters. By now there were fifteen to twenty men employed by the firm. The company were commissioned to supply the Theodolites and Levels for the construction to the Canadian Pacific Railway in 1881. Towards the end of the century, the firm began to make heliographs continuing to produce them for the government until just before the Second World War when by agreement assigned their manufacture to another firm. 1904 The first dividing engine was completed by George William Watts. It was so remarkable an instrument at the time and for years afterwards, In 1907 Arthur Ames went to Canada and started an organisation in Winnipeg in 1909 this became a separate company called E. R. Watts and Son Ltd. of Ottawa. This firm developed considerably and was eventually with the co-operation of three other instrument companies (Cambridge Instrument Co, Ross, and Negretti and Zambra), were reconstituted as ”Instruments Ltd” of Ottawa and Toronto. During the next ten years, the firm expanded greatly to include glass grinding, leather work, dividing and engraving, testing, adjusting and packing. This expansion was continued during the First World War when workshops were completed and the machinery installed and running within eleven weeks from the start of construction. During the war, a Sergeant Coles, among the rats, lice and mud of the trenches, fitted various bits of scrap into his cocoa tin and made the first Flash Spotter for plotting the positions of enemy guns. Coles was rushed home to the firm's factory where he and George William Watts designed a spotter not made out of a cocoa tin and as a result, the Watts Vertical Force Variometer was developed during WWI. Other Watts instruments made in the First World War included the Light Mountain Theodolites which were taken on Mt Everest expeditions. In 1919 ER Watts and Sons was incorporated as a limited company and in 1939 G. A. Whipple joined the Board of Directors. Shortly afterwards, Frank Charles Watts died having been Chairman of the firm for over 37 years and seen it through the First World War with all its expansions and difficulties. He was succeeded by his brother George William Watts with the vacant post of Managing Director being filled by G. A. Whipple. During the Second World War, the company expanded further and the number of employees rose to well over 1,300. In 1946 Watts acquired 78% of Adam Hilger and the microscope maker James Swift and Son Who were Manufacturers of Theodolites, Levels, Alidades, Meteorological Instruments, Variometers, and many other types of scientific instruments Then in 1948 the company amalgamated with Adam Hilger as Hilger and Watts which was then incorporated as a public company.Naval Rangefinder with a vertical wooden handle, and an arrangement of optical lenses. Three reversible brass inserts calibrated on both sides in yards, correspond to various base heights, (20 and 25 feet, 30 and 35 feet and 40 and 50 feet). They are fitted along the axis of the instrument. When the scale for the appropriate base height is selected and inserted, the carriage can be slid for coincidence and the distance read at the index mark on the sliding carriage.inscribed "Rangefinder Cotton Type Mk II" Calibrated scale up to 5000 yds (50 ft), 5000 yds (35 ft), 4000 yds (25 ft) made by E. R. Watts & Son.flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, rangefinder, cotton type, e r watts & sons, naval range finder, marine equipment

Born in 1903, Norman Penrose studied at the Bendigo School of Mines. A painter and a teacher, he lived in Bendigo most of his life.Watercolour painting by Norman Penrose titled "Bendigo Mining Country." It shows a barren landscape of green shrubs and reddish dirt under a cloudy sky. A single poppet head and a chimney with smoke coming out can be seen on the right hand side with two houses further away. The painting is signed on the bottom left-hand side. The painting is under glass in a light brown wooden frame. Norman Penrose Collection On the back "Norman W. Penrose" ("Bendigo Mining Country') 14 Barkly Terrace, Bendigo. phone: 36420. In red chalk No 4 within a circle. bendigo, mining, norman penrose, artist, teacher

Advertising material. Use this blotter with the compliments of George Prowse, the quality butcher. Where your money goes further and where you can rely on quality meat and strict attention to orders. Our shops situated at: Pall Mall and Hargreaves Street, Bendigo, tel 798. On the left a copy of a painting titled ''Evening Splendour'' by H. Henderson showing a country landscape with a small lake, trees and vegetation, the top of a church in the distance.bendigo, business, george prowse

Three page handwritten Mine Manager's Reports from the Hercules and Energetic Mines, transcribed by Albert Richardson. 1898 report from F. Youlden; 1909 report from J. Roberts. Extract from Youlden report 18.6.1898: 'Consumption of firewood for the month since making the alterations to feed pipes has beewn 258 tons. Am now trying some coal to see if expense can be further reduced'

The Villa Alba Museum is cultural institution committed to the collection, study and display of 19th century interior decorative finishes, and the components of 19th and 20th century interior decoration. Most rooms in this historically and aesthetically significant house have stone (typically marble) fireplaces that are inset with plain and decorative tiles produced by the company of Mintons Ltd.Digital photograph of the pattern of decorative surround tiles in the fireplace of the drawing room at Villa Alba. The gold, white and blue decorative tiles depict abstract flowers within a quatrefoil design. The tiles were produced by Mintons Ltd. In the Minton's Ltd Tile Catalogue, this tile is listed as No. 1427 G. Sin. Tiles. / End Tile. It can be viewed in the flipbook viewer of the original catalogue published by The Minton Archive on page 44/206.fireplaces, villa alba - drawing room, mintons, mintons - tiles

Yields information about the delivery of an ex Ballarat tram to a tramway Museum.Colour 35mm slide in a white cardboard slide holder of Ballarat No. 34 being unloaded at the AETM site on 24-9-1971, Photo John Radcliffe. Ballarat No. 21 can be seen in the background on a truck waiting to be off-loaded. In the adjacent slide position is a note to this effect. This piece of paper was wrapped around the slide. Photo from the collection of Lilian Butler. See also Reg Items 7988i1 and i2 for other photographs.Written around the slide in ink "Unloading Ballarat car 34 at Australian Electric Transport Museum (SA) Inc St Kilda SA - Ballarat car 21 at rear - 24-9-1971. J. C. Radcliffe photo."tramways, trams, ballarat, aetm, sale of trams, adelaide, tram 34

Yields information about the first series of Geelong trams in 1912.Postcard, divided back of one of the first Geelong trams in the depot. No number can be seen on the front of the tram. The first batch was numbered 1 to 10. Note the detail painting on the piece of vertical panel at the end of the saloon. Note the track brake. The postcard writer advised that it was one of Geelong's new trams. Divided back type with areas for correspondence, stamp and address. On the left hand side - W. H. Watts Photographer Geelong.trams, tramways, geelong, depot, new tramcars, tram 30

Diggers & Mining. Stores at the diggings. STG. From the original in the Mitchell Library. Stores in Iron Bark Gully, Bendigo, 1852. Hand writing on bottom right side of slide reads; Iron Bark Gully, Bendigo. Depicts store in Iron Bark with miners and some horses. There are still a lot of trees standing but some tree stumps can be seen in the picture. Markings: 6 994.LIF. 5. Used as a teaching aid.hanimounteducation, tertiary, goldfields

One of a series of photographs, taken by Edgar James Dower in the second decade of the twentieth century. Born and raised in Olinda, his family later moved to Surrey Hills. He worked as an adult as a clerk in the city office of the Metropolitan Gas Company, and in his role as a 'collector', he was able to photograph scenes including the construction of tramlines and associated buildings in Kew, Hawthorn, Camberwell and Surrey Hills. Later he established a real estate agency with his brother - the E.J. Dower Real Estate Agency, Dandenong Office.The image is an historically significant record of the development of transport infrastructure which was used to connect Victorians in the first two decades of the twentieth century. This development resulted from increases in population and the consequent extension of Melbourne's suburbs. The photographs, both individually and collectively, richly detail the labour of workers and the tools and machinery used to create and extend Melbourne's public transport network in the years preceding and during World War 1.Digital copy of an original mounted photograph showing a worker standing on a ladder in Glenferrie Road, Hawthorn, working on the overhead electric cables that would be used to power trams on the New Kew tramline.Other railway workers are working on platforms or viewing the man on the ladder. The ladder appears to be only supported by one other worker. "The Don Store" at left is immediately behind the old railway level crossing which can be seen in the distance to the south.Annotated verso: "Preparing for electric trams in Glenferrie Road, near Glenferrie Station, showing railway gates / Taken by E.J. Dower 1914"theme --- travelling by tram, theme -- connecting victorians by transport and communications, glenferrie road -- hawthorn (vic.), railways -- hawthorn

David Miller (Dave) Mair (1879-1938) married Lily Vipond Deakin (1890-1945) in 1910. They had 5 children: Geoffrey David (1913-1970), Beryl (1916-1976), Gwynneth (1917-1997), Isabel Lillian (1921-1997) and Shirley Inez (1928-1968). Personal communication from Laurie Newton, Beryl's daughter: Dave and Lily initially lived in East Melbourne after they married. Dave walked across the gardens to work at the MCG. He never drove or owned a car. Geoffrey, Beryl and Gwynneth were born in East Melbourne. They subsequently moved to Louise Avenue, Mont Albert and Isabel may have been born while they were there. Later they purchased 20 Barton Street, Mont Albert. Shirley was born after they moved to Barton Street. Electoral roll details: 1919 1922 24 Louise Avenue, Mont Albert 1924 20 Barton Street, Mont Albert Dave Mair was a very keen sportsman. This is part of a large donation of material from the Deakin, Mair and Young families. The Deakin, Mair and Young families had many connections with Mont Albert and Surrey Hills.A post card type sepia photo of a family posed informally in a garden. Both the woman and the man are seated with children on their knees. A boy stands between them. In the background is a high paling fence beyond which 2 chimneys of adjacent properties can be seen. The woman is wearing a large brimmed hat so that half her face is in shadow. The man has a moustache and a receding hairline. All the faces are part in shadow.On rear: "MAIR / Dad Gwen Geoff / Mum Beryl" in blue biro. Thought to be Beryl Mair's handwriting. gwynneth mair, david miller mair, dave mair, lily vipond mair, lily vipond deakin, georffrey mair, gwynneth mair, beryl mair, hawthorn, children, families

A meat grinder or mincer was used for mincing or fine chopping of raw or cooked meat, fish, vegetables or similar food. It replaced tools like a mincing knife.'Beatrice' brand vintage cast iron mincer with a red wooden handle with two attachments. It can be screwed to a table or bench, secured tightly by a two pronged claw. It has a funnel at the top for the meat to be pushed into the mechanism which when the handle is turned operates the inner mechanism which forces the minced meat out through a side opening. The cast iron handle is slightly shaped near the main body of the mincer.'No. 318' 'Beatrice'meat mincers, domestic objects, kitchen equipment, cooking equipment

The firm of Bolex Paillard Ltd is world-famous for its accomplishments in the field of amateur cinematography. Paillard Bolex cine cameras and projectors are designed and manufactured in Sainte-Croix, Switzerland, which was also the centre of the Swiss watchmaking industry. Originally Bol, the company was founded by Charles Haccius and Jacques Bogopolsky in 1925. The M8 line of projectors were first manufactured in 1949. Its relatively light weight, affordability and portability made this model popular with home movie and amateur film makers.This projector is representative of several types of home projectors popular in the second half of the 20th Century.A small projector and carrying case. It is made of cast aluminum and steel, painted with a Grey Silver finish. The upper reel arm folds downward and locks for storage and also serves as a carrying handle. The lens assembly pivots outward for easy film loading and unloading. The front legs can be adjusted individually for height. An AC outlet is position at the rear of the projector. The carrying case includes slots to hold film reels and the power cord.On one side: " Bolex Paillard/ Fabrication Suisse/ Made in Switzerland" M 8bolex paillard, cimematography, home entertainment

The phosphoroscope was invented by Alexander Edmund Becquerel and used to measure the amount of time that a phosphorescent substance will glow after being irradiated by a brilliant source of light.The phosphoroscope consists of a round metal chamber with a pair of rotating discs inside, arranged so that no light can pass directly through the chamber. The discs have cut-out windows spaced equally at regular angular distances and are turned by the hand crank linked to a gear mechanism. The sample is placed in a specially designed holder into the small opening near the gearing, and it is exposed to the light source through the large rear condensing lens.Engraved on chamber: 'Phosphoroscope de E. Becquerel / J. Duboscq a Parisbecquerel phosphoroscope, phosphoroscope, optical instruments, phosphorescent, alexander edmund becquerel, jules duboscq, france